From f96a499535aedb6785645db3ea21bb2051233e8d Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Fri, 22 May 2009 21:47:08 +0000
Subject: [PATCH] Add a note mentioning that uses of the return value of an
 invoke must be dominated by the normal label.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72285 91177308-0d34-0410-b5e6-96231b3b80d8
---
 docs/LangRef.html | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/LangRef.html b/docs/LangRef.html
index 3f16e386c2b..d6a78c903b3 100644
--- a/docs/LangRef.html
+++ b/docs/LangRef.html
@@ -2383,6 +2383,10 @@ cleanup is performed in the case of either a <tt>longjmp</tt> or a thrown
 exception.  Additionally, this is important for implementation of
 '<tt>catch</tt>' clauses in high-level languages that support them.</p>
 
+<p>It is not valid to reference the return value of an invoke call from
+anywhere not dominated by the normal label, since an unwind does not
+provide a return value.</p>
+
 <h5>Example:</h5>
 <pre>
   %retval = invoke i32 @Test(i32 15) to label %Continue